154649484877 has 16 divisors (see below), whose sum is σ = 160259050800. Its totient is φ = 149142988800.

The previous prime is 154649484863. The next prime is 154649484883. The reversal of 154649484877 is 778484946451.

It can be written as a sum of positive squares in 8 ways, for example, as 154107396 + 154495377481 = 12414^2 + 393059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154649484877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154649484277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4992477 + ... + 5023357.

It is an arithmetic number, because the mean of its divisors is an integer number (10016190675).

Almost surely, 2^154649484877 is an apocalyptic number.

It is an amenable number.

154649484877 is a deficient number, since it is larger than the sum of its proper divisors (5609565923).

154649484877 is a wasteful number, since it uses less digits than its factorization.

154649484877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32544.

The product of its digits is 216760320, while the sum is 67.

The spelling of 154649484877 in words is "one hundred fifty-four billion, six hundred forty-nine million, four hundred eighty-four thousand, eight hundred seventy-seven".